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Chapter 5: Using Orpheus String Design (CT) The String Design Wizard helps design a new CT string to meet expected conditions. When the requirements, such as road weight, flow rate, set-down weight, pick-up force, and string manufacturer are specified, Orpheus provides calculations, such as dry weight and estimated costs. On the Q & A tab, select Selecting the CT string and BHA, then What is the optimum string design for this job? Extended Reach (CT/JP) The Extended Reach wizard is used to project past the current well TD. This helps to predict how far the user could possibly proceed if the well continued on its present trajectory. Friction Coefficient Analysis The Friction Wizard is used to help determine what the friction coefficient(s) should be in order to get the best match between the actual surface weight (as recorded during a job) and model predictions. This is called the "Apparent Friction". 126 NOV CTES Cerberus 11.0 User Guide
